# gnm v1.1-0

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## Generalized Nonlinear Models

Functions to specify and fit generalized nonlinear models, including models with multiplicative interaction terms such as the UNIDIFF model from sociology and the AMMI model from crop science, and many others. Over-parameterized representations of models are used throughout; functions are provided for inference on estimable parameter combinations, as well as standard methods for diagnostics etc.

# gnm

Functions to specify and fit generalized nonlinear models, including models with multiplicative interaction terms such as the UNIDIFF model from sociology and the AMMI model from crop science, and many others. Over-parameterized representations of models are used throughout; functions are provided for inference on estimable parameter combinations, as well as standard methods for diagnostics etc.

## Installation

You can install gnm from github with:

# install.packages("devtools")
devtools::install_github("hturner/gnm")


## Code of conduct

Please note that this project is released with a Contributor Code of Conduct. By participating in this project you agree to abide by its terms.

## Functions in gnm

 Name Description gnm-defunct Defunct Functions in gnm Package getContrasts Estimated Contrasts and Standard Errors for Parameters in a gnm Model pickCoef Get Indices or Values of Selected Model Coefficients summary.gnm Summarize Generalized Nonlinear Model Fits residSVD Multiplicative Approximation of Model Residuals se.gnm Standard Errors of Linear Parameter Combinations in gnm Models plot.gnm Plot Diagnostics for a gnm Object gnm-package Generalized Nonlinear Models voting Data on Social Mobility and the Labour Vote Diag Equality of Two or More Factors predict.gnm Predict Method for Generalized Nonlinear Models exitInfo Print Exit Information for gnm Fit barleyHeights Heights of Barley Plants expandCategorical Expand Data Frame by Re-expressing Categorical Data as Counts wedderburn Wedderburn Quasi-likelihood Family wheat Wheat Yields from Mexican Field Trials anova.gnm Analysis of Deviance for Generalized Nonlinear Models se Extract Standard Errors Topo Topological Interaction of Factors profile.gnm Profile Deviance for Parameters in a Generalized Nonlinear Model yaish Class Mobility by Level of Education in Israel instances Specify Multiple Instances of a Nonlinear Term in a gnm Model Formula model.matrix.gnm Local Design Matrix for a Generalized Nonlinear Model nonlin.function Functions to Specify Nonlinear Terms in gnm Models termPredictors Extract Term Contributions to Predictor gnm Fitting Generalized Nonlinear Models parameters Extract Constrained and Estimated Parameters from a gnm Object ofInterest Coefficients of Interest in a Generalized Nonlinear Model vcov.gnm Variance-covariance Matrix for Parameters in a Generalized Nonlinear Model MultHomog Specify a Multiplicative Interaction with Homogeneous Effects in a gnm Model Formula Exp Specify the Exponential of a Predictor in a gnm Model Formula House2001 Data on twenty roll calls in the US House of Representatives, 2001 Const Specify a Constant in a "nonlin" Function Predictor MPinv Moore-Penrose Pseudoinverse of a Real-valued Matrix Multiplicative interaction Specify a Product of Predictors in a gnm Model Formula Inv Specify the Reciprocal of a Predictor in a gnm Model Formula Dref Specify a Diagonal Reference Term in a gnm Model Formula confint.gnm Compute Confidence Intervals of Parameters in a Generalized Nonlinear Model checkEstimable Check Whether One or More Parameter Combinations in a gnm Model are Identified Symm Symmetric Interaction of Factors cautres Data on Class, Religion and Vote in France barley Jenkyn's Data on Leaf-blotch on Barley asGnm Coerce Linear Model to gnm Object backPain Data on Back Pain Prognosis, from Anderson (1984) friend Occupation of Respondents and Their Closest Friend meanResiduals Average Residuals within Factor Levels mentalHealth Data on Mental Health and Socioeconomic Status erikson Intergenerational Class Mobility in England/Wales, France and Sweden No Results!

## Vignettes of gnm

 Name fig-Effect_plots.pdf fig-LCall.pdf fig-LCover45.pdf fig-LCqvplot.pdf fig-deaths1921-1940.pdf fig-profilePlot.pdf gnm.bib gnmOverview.Rnw screenshot1.png screenshot2.png screenshot3.png No Results!